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Great Blue Heron taking a break as it was preening on a dead tree limb. Cropped to a square (click to enlarge) Nikon D810, Nikon 200-500mm f/5.6 lens @ 500mm; 1/400th sec. @ f/6.3; ISO 100 |
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Same image as above but cropped to ~100% (click to enlarge) |
The other finalist in my lens consideration was the Sigma 150-600mm f/5-6.3 DG OS HSM Sport lens. One day soon I'll write as to why I chose the Nikon over the Sigma in this case.
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Full frame original image of two images above (click to enlarge) |
The images above were made at 1/3 stop down from wide open. Before I took this lens out, I used FoCal software to calibrate this lens to my camera body. As part of the process, the software also measures resolution and determines the optimum apertures. Additionally, the software will provide you with a figure for focus accuracy and consistency.
In my case, the AF Fine Tune needed to be adjusted to a mere +5, the sharpest aperture is f/6.3 with f/5.6 (wide open) a close second and, in my judgement, usable apertures to about f/10. Focus consistency is at 99.8%. I can't complain about anything about this lens so far. More coming.
Thanks for looking. Enjoy!
Dennis A. Mook
All content on this blog is © 2013-2015 Dennis A. Mook. All Rights Reserved. Feel free to point to this blog from your website with full attribution. Permission may be granted for commercial use. Please contact Mr. Mook to discuss permission to reproduce the blog posts and/or images.
Great images, Dennis! Sounds like you gave yourself an early Christmas present in coordination with Santa Cathy.
ReplyDelete(Just don't drop this rig in the James River, OK?)